闇やみ夜よの灯ともし火び

expression, noun

light in the darkness; godsend; guiding beacon

Metaphorical set phrase for something or someone that brings hope, relief, or guidance in a desperate situation. Often used in literary or rhetorical contexts.

• 彼かれの助じょ言げんは、まさに闇やみ夜よの灯ともし火びだった。

  His advice was truly a light in the darkness.

• この一いっ冊さつの本ほんが、私わたしにとって闇やみ夜よの灯ともし火びとなった。

  This one book became a guiding beacon for me.